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From: Rob Clark <rob@ti.com>
To: InKi Dae <daeinki@gmail.com>
Cc: Sumit Semwal <sumit.semwal@ti.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
	linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org,
	linux-media@vger.kernel.org, linux@arm.linux.org.uk,
	arnd@arndb.de, jesse.barker@linaro.org, m.szyprowski@samsung.com,
	t.stanislaws@samsung.com, Sumit Semwal <sumit.semwal@linaro.org>,
	daniel@ffwll.ch
Subject: Re: [RFC v2 1/2] dma-buf: Introduce dma buffer sharing mechanism
Date: Mon, 9 Jan 2012 09:17:05 -0600	[thread overview]
Message-ID: <CAF6AEGsTGOxyTX6Xijvm8UXGjtVTtYg5X5xfJo8D+47o+xU+bA@mail.gmail.com> (raw)
In-Reply-To: <CAAQKjZMEsuib18RYE7OvZPUqhKnvrZ8i3+EMuZSXr9KPVygo_Q@mail.gmail.com>

On Mon, Jan 9, 2012 at 4:10 AM, InKi Dae <daeinki@gmail.com> wrote:
> note : in case of sharing a buffer between v4l2 and drm driver, the
> memory info would be copied vb2_xx_buf to xx_gem or xx_gem to
> vb2_xx_buf through sg table. in this case, only memory info is used to
> share, not some objects.

which v4l2/vb2 patches are you looking at?  The patches I was using,
vb2 holds a reference to the 'struct dma_buf *' internally, not just
keeping the sg_table

BR,
-R

  parent reply	other threads:[~2012-01-09 15:17 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-02  8:57 [RFC v2 0/2] Introduce DMA buffer sharing mechanism Sumit Semwal
2011-12-02  8:57 ` [RFC v2 1/2] dma-buf: Introduce dma " Sumit Semwal
2011-12-02 17:11   ` Konrad Rzeszutek Wilk
2011-12-05  9:48     ` Semwal, Sumit
2011-12-05 17:18   ` Arnd Bergmann
2011-12-05 18:55     ` Daniel Vetter
2011-12-05 19:29       ` Arnd Bergmann
2011-12-05 20:58         ` Daniel Vetter
2011-12-05 22:04           ` Arnd Bergmann
2011-12-05 22:33             ` Daniel Vetter
2011-12-05 20:46     ` Rob Clark
2011-12-05 21:23       ` Daniel Vetter
2011-12-05 22:11         ` Rob Clark
2011-12-05 22:33           ` Daniel Vetter
2011-12-06 13:16           ` Arnd Bergmann
2011-12-06 15:28             ` Daniel Vetter
2011-12-07 13:27           ` Semwal, Sumit
2011-12-07 13:40             ` Arnd Bergmann
2011-12-08 21:44               ` [Linaro-mm-sig] " Daniel Vetter
2011-12-09 14:13                 ` Arnd Bergmann
2011-12-09 14:24                   ` Alan Cox
2011-12-10  4:01                     ` Daniel Vetter
2011-12-12 16:48                       ` Arnd Bergmann
2011-12-19  6:16                         ` Semwal, Sumit
2011-12-20 15:41                           ` Arnd Bergmann
2011-12-20 16:41                             ` Rob Clark
2011-12-20 17:14                               ` Daniel Vetter
2011-12-21 17:27                                 ` Arnd Bergmann
2011-12-21 19:04                                   ` Daniel Vetter
2011-12-23 10:00                                   ` Semwal, Sumit
2011-12-23 17:10                                     ` Rob Clark
2011-12-20  9:03                   ` Sakari Ailus
2011-12-20 15:36                     ` Arnd Bergmann
2012-01-01 20:53                       ` Sakari Ailus
2012-01-01 23:12                         ` Rob Clark
2011-12-13 13:33                 ` Hans Verkuil
2011-12-05 22:09       ` Arnd Bergmann
2011-12-05 22:15         ` Rob Clark
2011-12-05 22:35         ` Rob Clark
2011-12-07  6:35     ` Semwal, Sumit
2011-12-07 10:11       ` Arnd Bergmann
2011-12-07 11:02         ` Semwal, Sumit
2011-12-07 11:34           ` Arnd Bergmann
2011-12-09 22:50     ` [Linaro-mm-sig] " Robert Morell
2011-12-10 11:13       ` Mauro Carvalho Chehab
2011-12-12 22:44         ` Robert Morell
2011-12-13 15:10           ` Arnd Bergmann
2011-12-20  2:05             ` Robert Morell
2011-12-20 14:29               ` Anca Emanuel
2012-01-09  6:20   ` InKi Dae
2012-01-09  8:10     ` Daniel Vetter
2012-01-09  8:11       ` [Linaro-mm-sig] " Dave Airlie
2012-01-09 10:10       ` InKi Dae
2012-01-09 10:27         ` Daniel Vetter
2012-01-09 12:06           ` InKi Dae
2012-01-09 16:02             ` Daniel Vetter
2012-01-09 15:17         ` Rob Clark [this message]
2012-01-10  1:34           ` InKi Dae
2012-01-10  2:14             ` Rob Clark
2012-01-10  6:09               ` Semwal, Sumit
2012-01-10  7:28                 ` InKi Dae
2012-01-10  9:19                   ` InKi Dae
2012-01-11  1:08               ` InKi Dae
2011-12-02  8:57 ` [RFC v2 2/2] dma-buf: Documentation for buffer sharing framework Sumit Semwal

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